Surname Sedilia (Sedilia 
) , globally, is an extremely rare last name. The cognomen Sedilia is habitual in Latin America and the Caribbean, particularly Nicaragua, where it is a very rare surname, Chile, where it is an extremely rare surname, and Venezuela. Not in comparison with a country's population, this name is the most popular in Latin America and the Caribbean, particularly Mexico, Nicaragua, and Chile. More frequently, Sedilia is the forename as well as the last name.